When a person has a cardiac arrest, giving first aid within 4 minutes is the golden four minutes to save a life.

In the class of BLS, each student learned and operated a series of effective first aid measures such as cardiopulmonary resuscitation, artificial respiration and so on.

The BLS course covers:

Adult and pediatric CPR

Two-rescuer scenarios and use of the bag-valve mask

Foreign-body airway obstruction (conscious and unconscious)

Automated external defibrillation (includes child AED update)

Special resuscitation situations

Other cardiopulmonary emergencies